空そら恥はずかしい

i-adjective

vaguely embarrassed; ashamed for no clear reason

Describes a feeling of embarrassment or shame that arises without an obvious cause, often in social situations. The word is relatively rare and literary.

• 初しょ対たい面めんの人ひとと話はなしていると、なぜかそらはずかしい気き持もちになる。

  When talking with someone I've just met, I feel vaguely embarrassed for some reason.